CN103329916A - Sterilizing composite and preparation thereof - Google Patents
Sterilizing composite and preparation thereof Download PDFInfo
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- CN103329916A CN103329916A CN2013103172255A CN201310317225A CN103329916A CN 103329916 A CN103329916 A CN 103329916A CN 2013103172255 A CN2013103172255 A CN 2013103172255A CN 201310317225 A CN201310317225 A CN 201310317225A CN 103329916 A CN103329916 A CN 103329916A
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Abstract
The invention relates to the field of the pesticide preparation, and discloses sterilizing composite and preparation thereof. The sterilizing composite consists of fenpropidin and thiophanate methyl at the mass ratio of 1:(0.2-10). The sterilizing composite disclosed by the invention can be prepared into suspoemulsion, wettable powder and water dispersible granule with accessory ingredient and excipient, and the suspoemulsion, the wettable powder and the water dispersible granule can be widely used for preventing and curing the powdery mildew, the banded sclerotial blight, the rust disease and the like of cereal crops.
Description
Technical field
The present invention relates to technical field of pesticide, be specifically related to a kind of bactericidal composition and preparation thereof, especially a kind of bactericidal composition and preparation thereof for control cereal crop disease.
Background technology
Cereal crop, general in the cereal crop generation as rust, banded sclerotial blight, the powdery mildew of wheat, barley, paddy rice, the control difficulty.
Rust endangers leaf, stem and the fruit of plant by the parasitogenic class plant disease of the rest fungus in the fungi.Rest fungus generally only causes local infection, the position that is injured can produce the phlycten point of different colours or blister shape, cup-shaped, hair because of the spore productive set, what have also can cause symptoms such as tumour, tertia, clump branch, Qu Zhi limb, or cause fallen leaves, the burnt tip, undergrowth etc., sorus is intensive in flakes when serious, and plant is withered rapidly because of a large amount of evaporations of moisture in the body.The rust distribution is wide and harmfulness is big, is more common in cereal crop, leguminous plant and pears etc.The rust of many crops is global, and some has the popular characteristics of Da Qu, production loss Chang Yiwan ton meter.China is in 60～seventies of 20th century, and once large tracts of land was popular for wheat leaf rust (Puccinia reconditavar.tritici), and wheat yellow rust (P.striiformis) etc. also often has and causes harm.
Banded sclerotial blight, be to infect a kind of fungal disease that causes by Rhizoctonia solani Kuhn, be that one of the most general main disease takes place paddy rice, general early rice overweights late rice, often cause grain not full, the ghost rate increases, and serious caused plant lodging is withered, is common in gramineous plantses such as paddy rice, wheat, millet.Banded sclerotial blight cause of disease Thanatephorus cucumeris (Frank) Donk. claim thanatephorus cucumeris(frank) donk, belongs to the Basidiomycotina fungi.No condition Rhizoctonia solani K ü hn claims Rhizoctonia solani Kuhn, belongs to the Deuteromycotina fungi, and it is that AG-1 accounts for more than 95% that pathogenic main mycelia is merged the group, secondly is AG-4 and AG-Bb (double-core line core bacterium).Begin to produce to prick from mycelial growth rate and sclerotium and take time, R.solani AG-1 and AG-4 are very fast, and double-core rhizoctonia AG-Bb is slower.AG-1 forms sclerotium and takes 3 days under 23 ℃ of conditions on the PDA, the circular or irregular shape of sclerotium dark brown, and tightr, the bacterium colony lighter color is brown to dark brown; AG-4 bacterium colony terra brown, sclerotium forms needs 3-4 days, brown, irregular shape, more flat, loose, assemble mutually; AG-Bb bacterium colony taupe, sclerotium forms needs 3-4 days, taupe, circle or subcircular, size is consistent, generally is born in the aerial hyphae clump.
Powdery mildew, (Erysiphe graminis D.Cf.sp.tritici E.Marchal.) causes by wheat class powdery mildew, all can fall ill the wheat leaf blade of mainly causing harm, also cause harm stem and tassel from seedling to heading.Begin to produce yellow point at blade, expansion then develops into circle or oval scab, and the mould layer of adularescent powdery is given birth on the surface., ordinary circumstance bottom blade is more than upper blade, and vacuum side of blade is more than the front.The powdery mildew mildew is early stage disperses separately, after be unified into a big mildew, even can cover full leaf, have a strong impact on photosynthesis, eubolism is interfered, cause early ageing, output incurs loss.Especially the powdery mildew of wheat class in case take place, will cause the serious underproduction of crop.Since the later stage seventies, along with of short stem, the popularization of semi-dwarf mutant wheat breed and the improvement of fertilizer and water condition, wheat plant is tillered increased, grow densely, cause that the field is strongly fragrant covers, generation and the harm of powdery mildew are on the rise, and become one of main disease on the present Wheat Production.
Crops when disease takes place often multiple diseases take place simultaneously; it is close that three kinds of diseases of the rust of cereal crop, banded sclerotial blight, powdery mildew take place by period; bactericide uses prevention and treatment range limited separately, and control efficiency is poor, can't provide comprehensive protection for crops.Therefore, provide a kind of bactericidal effect remarkable, the bactericide that can effectively prevent and treat rust, banded sclerotial blight, three kinds of diseases of powdery mildew is significant.
Summary of the invention
In view of this, the object of the invention provides a kind of bactericidal composition and preparation thereof, can reach and prevent and treat cereal crop rust, banded sclerotial blight and powdery mildew simultaneously.
For realizing purpose of the present invention, the present invention adopts following technical scheme:
A kind of bactericidal composition is made up of fenpropidin and thiophanate-methyl, and the weight ratio of described fenpropidin and thiophanate-methyl is 1:(0.2～10).
Fenpropidin, English name fenpropidine, structural formula is suc as formula shown in the I.Fenpropidin belongs to the piperidines systemic fungicide, is the sterol biosynthesis inhibitor, and to the Erysiphaceae fungi, especially standing grain powdery mildew, rye beak spore and handle rest fungus have special efficacy.
Formula I
Thiophanate-methyl, English name thiophanate-methyl, structural formula is suc as formula shown in the II.Thiophanate-methyl belongs to benzimidazole, is a kind of broad spectrum activity systemic fungicide, can prevent and treat the various crop disease, has interior suction, preventive and therapeutic action.It is converted into carbendazim in plant corpus, the formation of spindle influences cell division in the mitosis of interference bacterium.
Formula II
Fenpropidin is different with the thiophanate-methyl structure, mechanism of action difference, can effectively prevent and treat cereal crop rust, banded sclerotial blight and powdery mildew by the bactericidal composition that fenpropidin and thiophanate-methyl are formed, compare with single agent and to have produced obvious synergistic effect, reduce the consumption of agricultural chemicals, but also had wide, environmentally safe advantage of use age.
Different bactericidal active constituents mix each active component of back because the difference of composition, structure, physicochemical property makes that the synergy between each active component is typically expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly the mutual synergism between different material, and the effect of its generation is greater than the sum total of each composition effect; And being exactly the effect of its generation, summation action equals the sum total of each composition effect; When antagonism referred to that two kinds of materials act on living organism, a kind of material disturbed the effect of another kind of material, or the effect of interfering with an opponent each other, the phenomenon that general effect is descended.
The present invention estimates two kinds of mixed interactions of different activities component of the present invention with reference to Sun Yunpei (Sun YP) method, and wherein, co-toxicity coefficient (CTC) 〉=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80＜co-toxicity coefficient (CTC)＜120 shows as summation action.The present invention estimates both and uses the back effect with by calculating the co-toxicity coefficient after fenpropidin and thiophanate-methyl are used with, and the result shows that the weight ratio of described fenpropidin and thiophanate-methyl is 1:(0.2～10) co-toxicity coefficient all greater than 120.Find that by the test of outdoor biological activity determination the weight ratio of described fenpropidin and thiophanate-methyl is 1:(0.2～10) ratio mix to use and have the notable synergistic effect.
Preferably, the weight ratio of described fenpropidin and thiophanate-methyl is 1:(1～3).
Pesticide original medicine can not directly use, and must process and be mixed with various pesticidal preparations, could use.Therefore the present invention also provides a kind of bactericide, is made by bactericidal composition of the present invention and auxiliary agent and carrier.
Wherein, the percentage by weight that accounts for described bactericide as preferred described bactericidal composition is 1%-80%, is 20%-70% more preferably in certain embodiments.
Bactericide of the present invention can be made pesticidal preparations by bactericidal composition of the present invention and auxiliary agent, to be applied to agricultural production as required according to method known in those skilled in the art.As being mixed with suspension emulsion, wetting powder, water dispersible granules according to method known to those skilled in the art.
Wherein in the suspension emulsion, the weight ratio that bactericidal composition of the present invention accounts for described suspension emulsion is 20%～70%, the percentage by weight that wetting agent/dispersant accounts for described suspension emulsion is 3%～6%, the percentage by weight that emulsifier accounts for described suspension emulsion is 3%～10%, the percentage by weight that thickener accounts for described suspension emulsion is 0.1%～2%, the percentage by weight that defoamer accounts for described suspension emulsion is 0.1%～0.2%, and the percentage by weight that solvent accounts for described suspension emulsion is 0～20%, and surplus is water.
Wherein in the wetting powder, the percentage by weight that bactericidal composition of the present invention accounts for described wetting powder is 1%～80%, the percentage by weight that the percentage by weight that wetting agent accounts for described wetting powder is 1%～7%, dispersant accounts for described wetting powder is 2%～10%, and surplus is carrier.
Wherein in the water dispersible granules, the percentage by weight that bactericidal composition of the present invention accounts for described water dispersible granules is 1%～80%, the percentage by weight that wetting agent accounts for described water dispersible granules is 1%～7%, the percentage by weight that dispersant accounts for described water dispersible granules is 2%～10%, the percentage by weight that disintegrant accounts for described water dispersible granules is 0～5%, the percentage by weight that adhesive accounts for described water dispersible granules is 0～1%, and surplus is carrier.
Auxiliary agents such as the used wetting agent of the above various preparations of preparation, emulsifier, dispersant, disintegrant, adhesive, thickener, defoamer, solvent, carrier are and well known to a person skilled in the art.
Preferably, wetting agent of the present invention is Tersperse2020, Tersperse2425, lignosulfonates, alkylnaphthalene sulfonate formaldehyde condensation products (NNO), nekal (Nekal BX), oleic acid methylamino ethylsulfonic acid sodium (LS), the sodium salt of alkyl naphthalene sulfonic acid condensation polymer (D425), TERWET1004, SP-2845W, Morwet EFW, GY-D04, GY-D02, the alkylaryl APEO, lauryl sodium sulfate, the dodecyl sodium naphthalene sulfonate, neopelex, calcium dodecyl benzene sulfonate, penetrating agent JFC, in dodecyl polyoxyethylene ether phosphate and the polyaryl phenol polyethenoxy ether one or more.
Preferably, emulsifier of the present invention is calcium dodecyl benzene sulfonate (farming breast 500), anion and the non-ionic surface active agent compound (agricultural newborn 0201B) of solvent, the newborn 0203B of farming, alkyl phenol formaldehyde resin polyoxyethylene ether (Nongru-700), alkylphenol-polyethenoxy (15) ether (agricultural newborn NP-15), phenethyl phenol polyethenoxy polyethenoxy ether (farming breast 1601), castor oil polyoxyethylene ether (agricultural newborn BY110), alkyl phenyl APEO (farming breast 100), sorbitan monooleate (S-80), dibutyl naphthalene sulfonic acids calcium (farming breast 2201), castor oil polyoxyethylene (40) ether (agricultural newborn EL-40), in Tween-20 (agricultural newborn T-20) and the alkyl vinyl aryl phenyl ether (YUS-SC3) one or more.
Preferably, dispersant of the present invention is Morwet D-425, Morwet D-500, SP-2836, TERSPERSE2700, TERSPERSE2425, DEHSCOFIX920, sodium methylene bis-naphthalene sulfonate, dispersing agent MF, sodium lignin sulfonate, calcium lignosulfonate, carboxymethyl cellulose, alkylnaphthalene sulfonate formaldehyde condensation products (NNO), oleic acid methylamino ethylsulfonic acid sodium (LS), the sodium salt of alkyl naphthalene sulfonic acid condensation polymer (D425), GY-D04, GY-D02, in alkylaryl APEO and the polyaryl phenol polyethenoxy ether one or more.
Preferably, disintegrant of the present invention is selected from one or more among urea, sodium carboxymethylcellulose, ammonium sulfate, silica gel, PEG and the SF-04.
Preferably, adhesive of the present invention is several or several in sucrose, soluble starch, Sodium Polyacrylate, dextrin, xanthans and the organobentonite.
Preferably, carrier of the present invention is selected from one or more in kaolin, bentonite, potter's clay, diatomite, white carbon and the precipitated calcium carbonate.
Preferably, thickener of the present invention is one or more in xanthans, gum Arabic, methylcellulose, carboxymethyl cellulose, hydroxyethylcellulose, hydroxypropyl cellulose, PAA, sodium alginate, polyvinyl alcohol, polyvinylpyrrolidone, polyacrylamide and the Sodium Polyacrylate.
Preferably, defoamer of the present invention is organosilicon ketone, C
8-10Fatty alcohol and C
10-20Saturated fatty acid and in the ester class one or more thereof.
Preferably, solvent of the present invention is one or more in the aromatic solvent naphtha, tributyl phosphate, tetrahydrofurfuryl alcohol, oxolane, vegetable oil, paraffin oil, lubricating oil, solvent naphtha No. 100, No. 150, No. 180 and No. 200.
Bactericide of the present invention can effectively be prevented and treated powdery mildew, banded sclerotial blight, three kinds of diseases of rust, compares with single agent to have obvious synergistic effect.Therefore the present invention also provides the application of above-mentioned bactericide in control cereal crop powdery mildew, banded sclerotial blight, rust.
Bactericidal composition of the present invention is made up of fenpropidin and thiophanate-methyl, the weight ratio of described fenpropidin and thiophanate-methyl is 1:(0.2～10), has obvious synergistic effect, can effectively prevent and treat cereal crop rust, banded sclerotial blight and powdery mildew, reduce the consumption of active ingredient, reduce use cost simultaneously, and reduce the pollution to environment, the use age is wide, the lasting period is long, to succession crop safety.
Embodiment
The embodiment of the invention discloses a kind of bactericidal composition and preparation thereof, those skilled in the art can use for reference this paper content, suitably improve technological parameter and realize.Special needs to be pointed out is that all similarly replace and change apparent to those skilled in the art, they all are regarded as comprising within the scope of the present invention.Product of the present invention is described by preferred embodiment, and the related personnel obviously can change or suitably change and combination product as herein described in not breaking away from content of the present invention, spirit and scope, realizes and use the technology of the present invention.
In order further to understand the present invention, below in conjunction with embodiment a kind of bactericidal composition provided by the invention and preparation thereof are elaborated.
The Toxicity Determination of embodiment 1, bactericidal composition of the present invention
For the composite ratio of fenpropidin and thiophanate-methyl is screened, carried out Toxicity Determination with the fenpropidin thiophanate-methyl of different proportionings.Test adopts pot-culture method to carry out toxicity test.Measure the virulence of fenpropidin and the agent of thiophanate-methyl list simultaneously respectively.
Select for use susceptible wheat breed potted plant, it is standby to treat that seedling grows to the 2-3 leaf phase.The fresh spore of white powder germ that produces in the 24h on the morbidity wheat leaf blade is evenly shaken off to be inoculated on the processing 2-3 potted plant wheat of leaf phase.Every processing is no less than 3 basins, every basin 10 strains.Each is handled 3 times and repeats, and sprays with the medicament of 200 times, 400 times, 600 times, 800 times, 1000 times of dilutions respectively, puts then under the suitable condition and cultivates.Each control efficiency of handling of statistics, and calculate EC
50, calculate co-toxicity coefficient (CTC) with the abundant method of Sun Yun again.
Different fungicidal activity components mix each active component of back because the difference of composition, structure, physicochemical property makes that the synergy between each active component is typically expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly the mutual synergism between different material, and the effect of its generation is greater than the sum total of each composition effect; And being exactly the effect of its generation, summation action equals the sum total of each composition effect; When antagonism referred to that two kinds of materials act on living organism, a kind of material disturbed the effect of another kind of material, or the effect of interfering with an opponent each other, the phenomenon that general effect is descended.
Co-toxicity coefficient (CTC) 〉=120 shows as synergistic effect;
Co-toxicity coefficient (CTC)≤80 shows as antagonism;
80＜co-toxicity coefficient (CTC)＜120 shows as summation action.
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index * mixture of A)+(percentage composition of B in toxicity index * mixture of B)
Co-toxicity coefficient (CTC)=[mixture actual measurement virulence coefficient (the ATI)/theoretical virulence coefficient (TTI) of mixture] * 100 bactericidal compositions provided by the invention are as shown in table 1 to the Toxicity Determination result of wheat powdery mildew:
Table 1 fenpropidin thiophanate-methyl is to the prescription The selection result of wheat powdery mildew germ
| Handle | EC 50(mg/L) | ATI | TTI | Co-toxicity coefficient CTC |
| Fenpropidin | 0.9235 | 100 | / | / |
| Thiophanate-methyl | 1.3728 | / | / | / |
| Fenpropidin: thiophanate-methyl (5:1) | 0.71 | 130.1 | 94.5 | 137.6 |
| Fenpropidin: thiophanate-methyl (2:1) | 0.69 | 133.8 | 89.1 | 150.2 |
| Fenpropidin: thiophanate-methyl (1:1) | 0.72 | 128.3 | 83.6 | 153.4 |
| Fenpropidin: thiophanate-methyl (1:2) | 0.74 | 124.3 | 78.2 | 159.6 |
| Fenpropidin: thiophanate-methyl (1:3) | 0.78 | 118.4 | 75.45 | 156.9 |
| Fenpropidin: thiophanate-methyl (1:5) | 0.86 | 107.4 | 72.7 | 147.7 |
| Fenpropidin: thiophanate-methyl (1:7) | 0.91 | 101.5 | 71.4 | 142.2 |
| Fenpropidin: thiophanate-methyl (1:10) | 0.95 | 97.2 | 70.2 | 138.4 |
By table 1 as seen, fenpropidin and thiophanate-methyl are mixed, the part by weight scope is in 1:(0.2～10) between its co-toxicity coefficient all above 120, it is composite to illustrate that fenpropidin and thiophanate-methyl carry out under this ratio, compare meeting with single agent and produce good synergistic effect, can reduce dosage, reduce use cost.
Embodiment 2,20% fenpropidin thiophanate-methyl suspension emulsion
Fenpropidin 10%, thiophanate-methyl 10%, Nekal BX 4%, agricultural newborn 0203B5%, tetrahydrofurfuryl alcohol 10%, xanthans 1%, silicone defoaming agent 0.1%, water supply 100%.The former medicine interpolation of thiophanate-methyl Ricinate, thickener, defoamer are made suspending agent, add the former medicine of fenpropidin then and mix, add emulsifier, solvent again, even mixing namely after adding water.
Embodiment 3,36% fenpropidin thiophanate-methyl suspension emulsion
Fenpropidin 30%, thiophanate-methyl 6%, D4255%, castor oil polyoxyethylene ether 7%, oxolane 15%, PAA 0.5%, silicone defoaming agent 0.1%, water supply 100%.The former medicine interpolation of thiophanate-methyl Ricinate, thickener, defoamer are made suspending agent, add the former medicine of fenpropidin then and mix, add emulsifier, solvent again, even mixing namely after adding water.
Embodiment 4,48% fenpropidin thiophanate-methyl suspension emulsion
Fenpropidin 36%, thiophanate-methyl 12%, Tersperse24256%, calcium dodecyl benzene sulfonate 9%, tributyl phosphate 12%, polyvinylpyrrolidone 0.8%, silicone defoaming agent 0.1%, water supply 100%.The former medicine interpolation of thiophanate-methyl Ricinate, thickener, defoamer are made suspending agent, add the former medicine of fenpropidin then and mix, add emulsifier, solvent again, even mixing namely after adding water.
Embodiment 5,55% fenpropidin thiophanate-methyl suspension emulsion
Fenpropidin 5%, thiophanate-methyl 50%, Morwet EFW3%, Nongru-700 3%, solvent naphtha No. 100 17%, polyvinyl alcohol 2%, silicone defoaming agent 0.1%, water supply 100%.The former medicine interpolation of thiophanate-methyl Ricinate, thickener, defoamer are made suspending agent, add the former medicine of fenpropidin then and mix, add emulsifier, solvent again, even mixing namely after adding water.
Embodiment 6,70% fenpropidin thiophanate-methyl suspension emulsion
Fenpropidin 10%, thiophanate-methyl 60%, NNO7%, agricultural newborn NP-159%, solvent naphtha No. 200 8%, carboxymethyl cellulose 0.1%, silicone defoaming agent 0.1%, water supply 100%.The former medicine interpolation of thiophanate-methyl Ricinate, thickener, defoamer are made suspending agent, add the former medicine of fenpropidin then and mix, add emulsifier, solvent again, even mixing namely after adding water.
Embodiment 7,1% fenpropidin thiophanate-methyl wetting powder
Fenpropidin 0.2%, thiophanate-methyl 0.8%, draw back powder 3%, calcium lignosulfonate 6%, kaolin and supply 100%.With fenpropidin, thiophanate-methyl, wetting agent, dispersant and carrier, pulverize, fully mix, namely through air-flow.
Embodiment 8,24% fenpropidin thiophanate-methyl wetting powder
Fenpropidin 4%, thiophanate-methyl 20%, lauryl sodium sulfate 4%, sodium methylene bis-naphthalene sulfonate 8%, potter's clay supply 100%.With fenpropidin, thiophanate-methyl, wetting agent, dispersant and carrier, pulverize, fully mix, namely through air-flow.
Embodiment 9,40% fenpropidin thiophanate-methyl wetting powder
Fenpropidin 5%, thiophanate-methyl 35%, Morwet EFW2%, Morwet D-5004%, kaolin supply 100%.With fenpropidin, thiophanate-methyl, wetting agent, dispersant and carrier, pulverize, fully mix, namely through air-flow.
Embodiment 10,66% fenpropidin thiophanate-methyl wetting powder
Fenpropidin 44%, thiophanate-methyl 22%, penetrating agent JFC 3%, carboxymethyl cellulose 7%, precipitated calcium carbonate supply 100%.With fenpropidin, thiophanate-methyl, wetting agent, dispersant and carrier, pulverize, fully mix, namely through air-flow.
Embodiment 11,80% fenpropidin thiophanate-methyl wetting powder
Fenpropidin 9%, thiophanate-methyl 71%, calcium dodecyl benzene sulfonate 5%, dispersing agent MF 10%, diatomite supply 100%.With fenpropidin, thiophanate-methyl, wetting agent, dispersant and carrier, pulverize, fully mix, namely through air-flow.
Embodiment 12,1% fenpropidin thiophanate-methyl water dispersible granules
Fenpropidin 0.5%, thiophanate-methyl 0.5%, TERWET10041%, TERSPERSE24253%, precipitated calcium carbonate supply 100%.With fenpropidin, thiophanate-methyl, wetting agent, dispersant and carrier, pulverize, fully mix, mediate granulation, drying and screening through air-flow, namely.
Embodiment 13,30% azoles mepanipyrim, the third oxygen quinoline water dispersible granules
Fenpropidin 3%, thiophanate-methyl 27%, TERWET10041%, TERSPERSE24253%, precipitated calcium carbonate supply 100%.With fenpropidin, thiophanate-methyl, wetting agent, dispersant and carrier, pulverize, fully mix, mediate granulation, drying and screening through air-flow, namely.
Embodiment 14,54% azoles mepanipyrim, the third oxygen quinoline water dispersible granules
Fenpropidin 18%, thiophanate-methyl 36%, SP-2845W2%, SP-28364%, kaolin supply 100%.With fenpropidin, thiophanate-methyl, wetting agent, dispersant and carrier, pulverize, fully mix, mediate granulation, drying and screening through air-flow, namely.
Embodiment 15,60% azoles mepanipyrim, the third oxygen quinoline water dispersible granules
Fenpropidin 15%, thiophanate-methyl 45%, neopelex 5%, sodium lignin sulfonate 10%, ammonium sulfate 3%, sucrose 0.5%, bentonite supply 100%.With fenpropidin, thiophanate-methyl, wetting agent, dispersant, disintegrant, adhesive and carrier, pulverize, fully mix, mediate granulation, drying and screening through air-flow, namely.
Embodiment 16,80% azoles mepanipyrim, the third oxygen quinoline water dispersible granules
Fenpropidin 40%, thiophanate-methyl 40%, penetrating agent JFC 4%, carboxymethyl cellulose 8%, urea 2%, xanthans 0.2%, precipitated calcium carbonate supply 100%.With fenpropidin, thiophanate-methyl, wetting agent, dispersant and carrier, pulverize, fully mix, mediate granulation, drying and screening through air-flow, namely.
Embodiment 17, bactericide field efficacy provided by the invention are measured
In order to further specify the effect of the present composition, carry out the experiment of field efficacy.
The bactericide that the embodiment of the invention 1,3,5,7,9,11,13,15 is provided and the agent of fenpropidin list and the agent of thiophanate-methyl list contrast the control efficiency of wheat powdery mildew, rust, banded sclerotial blight, and each is handled dosage and is 1000g/ha in active ingredient.3 repetitions are established in each processing, and each preventive effect of handling of statistics, statistics are 3 mean values that repeat.Each handle to crop powdery mildew to prevent and treat the result as shown in table 2.
Each processing of table 2 is to the control efficiency of crop pest
As shown in Table 2, the bactericide that the embodiment of the invention 1,3,5,7,9,11,13,15 provides is compared with single agent the control efficiency of wheat powdery mildew, rust, banded sclerotial blight, be significantly increased, thereby further specifying bactericide provided by the invention compares with single agent and has produced obvious synergistic effect, can reduce the consumption of agricultural chemicals, thereby reduce production costs and saved the labour.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (6)
1. a bactericidal composition is characterized in that, is made up of fenpropidin and thiophanate-methyl, and the weight ratio of described fenpropidin and thiophanate-methyl is 1:(0.2～10).
2. bactericidal composition according to claim 1 is characterized in that, the weight ratio of described fenpropidin and described thiophanate-methyl is 1:(1～3).
3. a bactericide is characterized in that, is made by claim 1 or the described bactericidal composition of claim 2 and auxiliary agent and carrier.
4. according to the described bactericide of claim 3, it is characterized in that the percentage by weight that described bactericidal composition accounts for described bactericide is 1%～90%.
5. bactericide according to claim 3 is characterized in that, the formulation of described bactericide is suspending agent, wetting powder or water dispersible granules.
6. the application of any described bactericide of claim 3～5 in control cereal crop powdery mildew, banded sclerotial blight, rust.
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| CN101087530A (en) * | 2004-12-23 | 2007-12-12 | 巴斯福股份公司 | Fungicidal mixtures |
| US20110033436A1 (en) * | 2008-04-07 | 2011-02-10 | Chi-Yu Roy Chen | Stable aqueous spore-containing formulation |
| CN102365018A (en) * | 2009-03-25 | 2012-02-29 | 拜尔农作物科学股份公司 | Synergistic combinations of active ingredients |
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